Nonequilibrium quantum dynamics of atomic dark solitons

Martin, A.D. and Ruostekoski, J. (2010) Nonequilibrium quantum dynamics of atomic dark solitons. New Journal of Physics, 12. ISSN 1367-2630

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We study quantum dynamics of bosonic atoms that are excited to form a phase kink, or several kinks, by an imprinting potential in a one-dimensional trap. We calculate dissipation due to quantum and thermal fluctuations in soliton trajectories, collisions and the core structure. Single-shot runs show weak filling of a soliton core, typically deeper solitons in the case of stronger fluctuations and spreading/disappearing solitons due to collisions. We also analyze a soliton system in an optical lattice that shows especially strong fluctuation-induced phenomena.

Item Type: Journal Article
Journal or Publication Title: New Journal of Physics
Uncontrolled Keywords: /dk/atira/pure/subjectarea/asjc/3100
Departments: Faculty of Science and Technology > Physics
ID Code: 123671
Deposited By: ep_importer_pure
Deposited On: 26 Feb 2018 12:06
Refereed?: Yes
Published?: Published
Last Modified: 11 Feb 2020 09:20

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